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Qandidate.com Blog:
Asynchronous fault tolerant programming with PHP
August 12, 2014 @ 12:17:20

On the Qandidate.com blog there's a new post looking at fault tolerant programming in PHP, a follow up to their previous post introducing the topic and creating a "circuit breaker" to prevent major issues when a problem pops up.

Now we will show you a running demo of the application where the circuit breaker library Phystrix is combined with asynchronous programming. The advantage of this approach is that it allows the querying of multiple backend services asynchronously. A timeout can be set for each of the calls and the circuit breaker will deal with failing services.

A screencast included in the post shows a script in action and how it reacts when the various services it needs fail. They've posted the code for the demo can be found over on GitHub and full instructions to run it are included in the post. Also included is some of the output from the test and a peek inside the logs showing where things were broken and if they were able to recover.

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asynchronous fault tolerant programming demo github screencast

Link: http://labs.qandidate.com/blog/2014/08/11/asynchronous-fault-tolerant-programming-in-php/

Master Zend Framework:
Configuring the ServiceManager with Abstract Factories
July 23, 2014 @ 13:41:10

On the Master Zend Framework site today Matthew Setter has a new post covering the configuring of the service manager using abstract factories.

One of the best features about Zend Framework 2 is undoubtedly the ServiceManager; because it makes it almost painless to configure and retrieve services in a consistent and predictable manner, anywhere in your application, at any time. [...] But the catch is, there's quite a bit to learn if you want to use it properly. As well as that, there's quite a number of ways to use it.

He walks you through some of the pros and cons of the various ways to work with the ServiceManager and where the factories fit in. He takes a bit of time to introduce the concepts behind abstract factories and how to define them in a Zend Framework v2 application. He finishes out the post with a more practical, working example using the interfaces provided to get a "MyUserTable" service.

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configure servicemanager abstract factory tutorial screencast

Link: http://www.masterzendframework.com/servicemanager/configuring-servicemanager-with-abstract-factories

NetTuts.com:
Working With Databases in Symfony 2
June 19, 2014 @ 12:45:20

In the next part of their Symfony2 screencast series, NetTuts.com has released their introduction to using databases from inside the framework-based application. Other posts in this beginner series (all authored by Andrew Perkins) can be found here.

Today we'll continue working with Symfony 2 where I'll show you how to get started working with databases. I'll be covering setup and config, generating the database, generating your getter/setter methods and table schema, and how to persist data from a form, into a database.

The video walks you through the setup and use of a MySQL database and Doctrine (from the command line) to create the database structure. The use the sample application that's been evolving through a few of the screencasts. In this application, they show how to connect the "Person" entity to a database table through annotations. Included is the code and commands to set up the "Person" entity correctly and how to fetch/save one from a simple controller method.

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symfony2 screencast series database tutorial

Link: http://code.tutsplus.com/tutorials/working-with-databases-in-symfony-2--cms-21461

NetTuts.com:
Form Validation in Symfony 2
June 12, 2014 @ 10:15:29

NetTuts.com has continued their screencast series introducing the Symfony 2 framework and some of the basic concepts around things like routing, templating and controllers. In this latest post they build on a previous post and show how to use the form validation already built into the framework in some custom forms.

Today we're going to continue where we left off last time, where we learned how to build reusable forms in Symfony 2. In this video, we'll learn how to validate the data that has been submitted to our form to ensure it is in the correct format, meets our data's requirements and then process the form submission accordingly. [Once finished we'll] now have a working form, which validates our data and displays the validation error messages back to the user.

The screencast (also viewable on YouTube) is only about ten minutes long and shows you how to validate a form with an email address and that the other field is "not blank". He does base it off of the form created in the previous tutorial so if you haven't done that one yet, it's better to start there and come back.

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form validation screencast symfony2 tutorial series

Link: http://code.tutsplus.com/tutorials/form-validation-in-symfony-2--cms-21397

NetTuts.com:
Creating Reusable Forms in Symfony 2
May 28, 2014 @ 12:53:55

NetTuts.com continues their series covering some of the basics of using the Symfony2 framework with this new screencast looking at creating reusable forms.

In this video, we'll build upon our existing knowledge of Symfony 2 to learn how to create reusable forms. We'll learn how to create a separate form class to house our form logic, build the form in a controller and then render it to the browser, from a template.

In the previous parts of the series they built up knowledge on the basics, routing, controllers and templates. In this screencast they use their DemoBundle to create the Person object, make a form populated with its data (name) and the Twig template to render the form.

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symfony2 series tutorial screencast reusable forms

Link: http://code.tutsplus.com/tutorials/creating-reusable-forms-in-symfony-2--cms-21244

NetTuts.com:
Working With Templates in Symfony 2
May 20, 2014 @ 10:34:05

NetTuts.com continues their introductory screencast series today with the latest episode focusing on using templates in Symfony 2. Other parts of the series have looked at using controllers, routing and some of the basics of the framework.

Today, let's learn about Symfony 2's Twig Templates. With Twig, you can seamlessly and painlessly integrate your PHP and HTML together, giving you a very clean looking presentation of your view code, without all the clutter of PHP tags, an overabundance of parenthesis, or semicolons. Instead, we have a simple and elegant syntax that we can use.

The screencast works with a sample application and a bundle to render the Twig template and includes examples of defining blocks of content and extending other templates. They also show you how to use layouts and pass data out to the template to be rendered on load. You can watch the screencast in-page or over on YouTube.

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introduction symfony2 template twig screencast series

Link: http://code.tutsplus.com/tutorials/working-with-templates-in-symfony-2--cms-21172

NetTuts.com:
Working With Controllers in Symfony 2
May 15, 2014 @ 10:44:34

The NetTuts.com site has posted a new screencast looking at using one particular part of a Symfony2-based application, the controllers. In this new addition to their series (there's more on routing and some of the basics) they introduce you to the basic handling of controllers and how to make them work.

Today we'll take a quick look at controllers from within Symfony 2. The easiest way to get started learning, is to just dive right in, see some code examples and I'll explain everything as we proceed. [...] I hope this video has show you how easy and fun controllers are to work with in Symfony 2. We can use the console to generate them and link everything up so that it all works seamlessly.

In the screencast, they start with the "WelcomeController" to show you the basic structure of the class and the action methods they hold. There's also an example of the commands you'll need to do the controller generation and what all is included in the result (controller, template, route, etc).

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symfony2 controller screencast tutorial introduction

Link: http://code.tutsplus.com/tutorials/working-with-controllers-in-symfony-2--cms-21111

Master Zend Framework:
Running the ZF2Skeleton with PHP's Built-in Webserver
April 24, 2014 @ 09:25:07

The Master Zend Framework site has posted the first in their screencast series with a look at running the ZF2Skeleton with PHP's built-in webserver.

In this screencast we'll go through the creating an application from the ZF2Skeleton project on Github and getting it up and running, using PHP's built-in web server. [It requires] PHP 5.4 or higher and Curl.

The screencast, coming in just over 3 minutes, briefly introduces you to the ZF2Skeleton project and shows you how to run it as a single process though PHP's own web server (useful for debugging). As a part of the installation, he also helps you get Composer installed as that's what Zend Framework 2 uses to install its packages correctly.

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screencast tutorial webserver builtin zf2skeleton

Link: http://www.masterzendframework.com/casts/001

NetTuts.com:
Routing Overview & Basics in Symfony 2
April 17, 2014 @ 12:10:12

If you're relatively new to using the Symfony2 framework, you might be wondering about some of the things happening during requests to your application. One of these things is the routing and handling of each request. In this new post from NetTuts.com they introduce you to the foundations of Symfony2 routing in a screencast.

In the last video, I said we'd take a look at controllers next, but I actually feel it may be easier to learn the framework in a slightly different order. Instead, we're going to learn about the basics of Symfony 2 routing, to give our applications clean and pretty URLs and make it easy to manage our applications URLs and links. We're not going to get too detailed, as Symfony's routing can do quite a bit, but we'll at least cover what we need to know by keeping it straight and to the point.

The screencast is a bit less than 10 minutes long and provides an overview of the routing, how it interacts with bundles and controllers. There's also a bit about using annotations to help define routing information directly in the controller.

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routing basics symfony2 introduction screencast demo

Link: http://code.tutsplus.com/tutorials/routing-overview-basics-in-symfony-2--cms-20754

NetTuts.com:
Symfony 2 The Basics
February 26, 2014 @ 12:55:28

On the NetTuts.com site they've posted a screencast that introduces you to the Symfony 2 framework and some of the functionality it offers.

In this first introduction video (of a new series), I'll show you the basics of working with the Symfony 2, PHP framework. We'll go over finding the online documentation, downloading, installing, and simple configuration for the framework. Lastly, we'll take a look at a bit of the prebuilt code that ships with Symfony 2.

This video just introduces the framework and gives you a feel for moving around in it and configuring it for general use. In other (upcoming) videos in the series they'll dig into actually creating a sample application via controllers, templates, routing, etc.

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symfony2 introduction screencast framework

Link: http://code.tutsplus.com/tutorials/symfony-2-the-basics--net-37015


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